Wednesday, December 12, 2007 - 11:17 AM
1314

Detection and resistance status of the Q biotype of Bemisia tabaci in field and ornamental plants of Arizona

Timothy J. Dennehy, tdennehy@ag.arizona.edu1, Benjamin DeGain, degain@ag.arizona.edu1, Xianchun Li, lxc@ag.arizona.edu1, and Robert L. Nichols, BNichols@cottoninc.com2. (1) University of Arizona, Department of Entomology, Extension Arthropod Resistance Management Laboratory, 410 Forbes Bldg, Tucson, AZ, (2) Cotton Incorporated, 6399 Weston Parkway, Cary, NC

The Q biotype of Bemisia tabaci (a.k.a. B. argentifolii) was first detected in the New World in 2004. It was collected on poinsettia plants obtained from a retail vendor in Tucson, Arizona. This new whitefly biotype was shown to possess high levels of resistance to a broad range of insecticides, including insect growth regulators and neonicotinoids. We will summarize research conducted in Arizona since the initial finding of the Q biotype, emphasizing the distribution in field crops and ornamentals, and resistance status.


Species 1: Hemiptera Aleyrodidae Bemisia tabaci (sweetpotato whitefly, silverleaf whitefly)